Device for uniformly moving on alpha paper strip for closet seats



May 13, 1930. so 1,758,862

DEVIGEFOR x-mwonmm MovING on A PAPER STRIP FOR CLOSET sans Filed July so. 1928 2 Sheets-Sheet 1 K. SOMMER May 13, 1930.

DEVICE FOR UNIFORMLY MOVING ON A PAPER STRIP FOR CLOSET SEATS Filed July 30, 1928 2 Sheets-Sheet 2 JMJ Patented May 13, 1930 UNITED STATES 1P AT ELNT OF F ICE KARL SOMMER, OF STEINENBERG, GERMANY V DEVICE FOR UNIFORMLY MOVING ON A PAPER STRIP FOR CLOSET SEATS Application filed July 30, 1928, Serial No.

The present invention relates to a device for uniformly moving on a paper strip for closet seats by means of a foot lever or movable foot board. Same is characterized by the fact that the spring-controlled foot lever, connected with the moving on device for the winding roller, serves either directly or indirectly as stop for the paper roll or the paper strip to be wound or the spare paper roll, so that the foot lever can each time only perform a movement according to the diameter of the paper roll, whereby a uniform moving on of the paper is obtained irrespective of the diameter of the rolls.

The accompanying drawing shows an exampl of a construction of such a device for uniformly moving on a paper strip for closet seats by means of a foot lever.

Fig. 1 is a longitudinal section through the centre of the device,

Fig. 2 shows a vertical section on the line A-A,

Fig. 3 is a cross section on line BB of Fig. 6, of a construction with depressed foot board,

Fig. 4 is a side view in inoperative position,

Fig. 5 is a side view of one form of construction,

Fig. 6 illustrates a horizontal section on line O-O of Fig. 5,

Fig. 7 is a vertical section on line D-D of Fig. 4, Fig. 8 is a cross section on line E-E of Fig. 10,

Fig. 9 shows a vertical section on line FF of Fig. 11,

Fig. 10 is a horizontal section on line GG of Fig. 8,

Fig. 11 is a side view,

Fig. 12 shows a form of construction of a pedal lever in plan view,

Fig. 13 is a longitudinal view thereof.

The device is arranged on the front of the water-closet 7 and enclosed in a boxshaped housing 1, in which the two axles 2 and 3 are rotatably mounted. The spare paper roll 4 is put on the axle 2, from whence the paper strip 5 is led upwards over the seat 6, thence the paper strip is wound onto 296,367, and in Germany June 25, 1925.

the axle -3. Below this roll 12 a lever 10 counterbalanced by weight 9 is pivotally mounted, which lever rests against the winding roll 12. The ends of axle 3 carry each a free-wheel mechanism which is not shown in detail, of which the sprocket wheels 13 in the construction according to Fig. 1 are capable of running idle on the axle in the clockwise direction but are locked in the opposite direction, so that the roll'12 rotating therewith winds, and the roll 4 unwinds. The tension-springs secured tothe bottom plate of the casing are so adjusted that they pull the end of the foot board 15 through the intermediary of the connecting chains running over the wheels 13, towards the lower edge of the lever 10. Upon the board 15 being depressed, the chain wheels 13 are turned idly in clockwise direction and the spring 14 is put under tension. On releasing the foot board 15, the springs 14 under tension again contract causing the wheels 13, whichare locked in this direction, to rotate the roll axle 3 until the end of the foot board comes again into contact with the lower edge of the lever 10. At thesame time the paper strip will be-moved on for a distance corresponding to the size of the edge of the seat. See Figs. 1 and 2.

In order to wind an invariably uniform length of paper, the roll 12 must be turned a large angle when it is of small diameter and a small angle when of large diameter. This is attained through the lever 10, which serves as stop to the roll 12, limiting the movement of the foot board 15. When the roll 12 is of small diameter the foot board performs a larger movement than when the roll 12 is of larger diameter. Owing to the changing engaging point of the lever 10 a 0 slight difference in the uniformity of the displacement occurs. In order to compensate for this difference and to obtain an absolutely uniform displacement of the paper f strip, the lower edge 43 of the compensating lever 10 resting against the winding roll 12 is camshaped in the portion coming into contact with the foot board. Owing to the changing position of the cam on the lever 10 the point of contact of the foot lever 15 and thereby the extent of its movement alters, thus compensating for the difference in the displacement. According to Figs. 3 to 7, one or two stroke regulating levers 16 are pivotally mounted on pins 17 underneath the roll 12, which levers are loaded by springs 18 and pressed continually against the roll 12. The ends of the axle 3 of the roll 12 carry a sprocket 13 which engages, on one side at least, a free wheel gear which is not further shown in the drawing.

According to F 5 the sprocket runs idle in anti-clockwise direction and is locked in ciockwise direction, so that the roll 12 turned therewith will wind and the roll 4 unwind. The tension sprin 18 secured to the end of the axle 2 of the roll 4 is so adjusted that it lifts the suspension rod 19 by means of the connecting chain running over the sprocket 13 until the lever 16 comes into contact with the winding roll 12. The foot board, pivotally mounted on its support, rests with its free end on the cam 11 of the lever 16.

On treading on the foot board 20 or 20, the lever, according to Fig. 3, will be pressed into its lower position, carrying with it the sprocket and putting the spring 18 under tension. When the foot board is released the spring 18 again contracts, thus causing the sprocket 13 which is locked in this direction to rotate the roll axle until the end of the lever 16 again strikes against the roll 12. At the same time the paper band is moved on for a length corresponding to the width of the seat. In order to always wind a uniform length of paper, the roll 12, when of small diameter, must be turned a large angle, andwhen of large diameter a small angle. This is attained owing to the fact that the regulating piece 22 of the lever 16 is cam-shaped in such a mannerthat it is always only able to perform the stroke necessary for winding the desired length of paper.

An indicator 23 attached to the suspension rod 19 constantly indicates on the scale 30 the number of seat lengths in reserve in the paper band. In the form of construction shown in Figs. 8 to 11 a lever 24 is mounted under the winding roll 12 in the longitudinal direction, which levercarries a regulating fork 25 engaging the roll 12. The end of the axle of roll 12 carries a free-wheel arrangement, which is not more definitely described herein, the sprocket wheel 13 of which, as shown in Fig. 11, is free to rotate in clockwise direction on the axle, but locked in the opposite direction, so that the roll 12 caused to turn on this account will wind and the roll 4 unwind. The tension spring attached tothe end of'the axle of the roll 4 is so regulated that it exerts an upward pull on the end of the lever 24 by means of the connecting chain passing over the wheel 13, causing its regulating fork 25 to come into contact with the roll 12. Attached in any desired manner to the lever 24 is the floor board 27 which carries sliding pins or projections 28 serving to guide same straight in the side walls, as can be seen in Figs. 8, 9 and 11.

(En treading on the board 27 the lever 24 also sinks and rotates the sprocket wheel 13 in clockwise direction, thereby putting the spring 26 under tension. On releasing the board 27 said spring 26 again contracts causing the sprocket wheel 13, which is locked in this direction, to turn the roll axle until the regulating fork 25 again engages the roll 12. At the same time the paper band is moved on a distance corresponding to the surface of the seat. The exact adjustment of the number of rotations of the roll is obtained owing to the fact that the regulating fork 25 is so adjusted that it is only capable of moving through a stroke necessary for winding the desired length of paper. An indicator arran 'ed on the end of the lever 24 shows on a graduation 30 the actual number of seat lengths in reserve in the paper band. 3

If, instead of providing a floor board, the lever 24 be extended, it can be made to form a pedal lever 31, and the operation will then be the same as in Figs. 8 to 11. See Figs. 12 and 13.

I claim 1. A device for uniformly moving on a paper strip on closet seats, comprising in combinat-ion with a pedal lever, a winding roll for the paper strip, a feed mechanism for said winding roll, means connecting said pedal lever with said feed mechanism, said pedal lever serving directly as abutment for said winding roll so that this winding roll can carry out only a movement corresponding to the actual diameter of the paper roll, a uniform feeding of the paper strip at any roll diameter being thus ensured.

2. A device for uniformly moving on a paper strip on closet seats, comprising in combination with a pedal lever, a winding roll for the paper strip, a feed mechanism for said winding roll, means connecting said pedal lever with said feed mechanism, said pedal lever serving directly as abutment for said winding roll so that this winding roll can carry out only a movement corresponding to the actual diameter of the paper rolh a uniform feeding of the paper strip at any roll diameter being thus ensured, a leveros cillatably mounted under said winding roll, a counterweight pressing said lever permanently against said winding roll, the lower end of said lever serving as abutment for said pedal lever.

3. A device as specified in claim 2, in which the lower edge of said oscillatable lever is curve-shaped to permit of fine adjusting of the feeding of the paper strip.

4. Adevice for uniformly feeding a paper strip on closet seats, comprising in combination a foot board, a winding roll for the paper strip, a feed mechanism for said winding roll, means connecting said foot board with said feed mechanism, a spring-controlled lever underneath said foot-board the upper end of said lever serving as abutment for the pa per roll varying in diameter.

5. A device for uniformly feeding a paper strip on closet seats, comprising in combination a foot board, a winding roll for the paper strip, a feed mechanism for said winding roll, means connecting said foot board with said feed mechanism, two spring-controlled levers underneath said foot-board the ends of said levers being of such shape that the stroke of the levers decreases until they strike against said winding roll in accordance with the increasing roll diameter.

6. A device as specified in claim 1, comprising in combination with the winding roll and with the pedal lever, a spring-controlled lever extending in the longitudinal direction of said winding roll pivotally mounted at one end, an abutment at the other end of said lever, and a pull element connecting said lever with said pedal lever.

7. A device as specified in claim 1, comprising in combination with the winding roll and with the pedal lever, a spring-controlled lever extending in the longitudinal direction 0]": said winding roll pivotally mounted at one end, an abutment at the other end of said lever, and a pull element connecting said lever with said pedal lever, said abutment being fork-shaped so that a fine adjusting of the paper feeding is obtained.

8. A device as specified in claim 1, comprising in combination with the winding roll and with the pedal lever, a spring-controlled lever extending in the longitudinal direction of said winding roll pivotally mounted at one end, an abutment at the other end of said lever, and a pull element connecting said lever with said pedal lever, a hand on said spring-controlled lever, and a scale over which said hand moves to indicate the length of paper strip in store.

9. A device for uniformly feeding a paper strip on a closet seat, comprising in combination with the winding roll for said paper strip, a feed mechanism for said winding roll, a foot board curved upward and resilient, a spring-controlled lever operating said feed mechanism, and means for connecting the middle of said curved resilient foot board to said spring-controlled lever so that when said foot-board is depressed said spring-controlled lever is operated.

KARL SOMMER. 

